100661250551 has 8 divisors (see below), whose sum is σ = 101603754000. Its totient is φ = 99719654272.

The previous prime is 100661250539. The next prime is 100661250563. The reversal of 100661250551 is 155052166001.

It is an interprime number because it is at equal distance from previous prime (100661250539) and next prime (100661250563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100661250551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100661250581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801 + ... + 448698.

It is an arithmetic number, because the mean of its divisors is an integer number (12700469250).

Almost surely, 2^100661250551 is an apocalyptic number.

100661250551 is a deficient number, since it is larger than the sum of its proper divisors (942503449).

100661250551 is a wasteful number, since it uses less digits than its factorization.

100661250551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453585.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 100661250551 in words is "one hundred billion, six hundred sixty-one million, two hundred fifty thousand, five hundred fifty-one".